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authorAllan Sandfeld Jensen <allan.jensen@digia.com>2013-09-13 12:51:20 +0200
committerThe Qt Project <gerrit-noreply@qt-project.org>2013-09-19 20:50:05 +0200
commitd441d6f39bb846989d95bcf5caf387b42414718d (patch)
treee367e64a75991c554930278175d403c072de6bb8 /Source/JavaScriptCore/heap/CardSet.h
parent0060b2994c07842f4c59de64b5e3e430525c4b90 (diff)
downloadqtwebkit-d441d6f39bb846989d95bcf5caf387b42414718d.tar.gz
Import Qt5x2 branch of QtWebkit for Qt 5.2
Importing a new snapshot of webkit. Change-Id: I2d01ad12cdc8af8cb015387641120a9d7ea5f10c Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Diffstat (limited to 'Source/JavaScriptCore/heap/CardSet.h')
-rw-r--r--Source/JavaScriptCore/heap/CardSet.h91
1 files changed, 0 insertions, 91 deletions
diff --git a/Source/JavaScriptCore/heap/CardSet.h b/Source/JavaScriptCore/heap/CardSet.h
deleted file mode 100644
index dc44c024d..000000000
--- a/Source/JavaScriptCore/heap/CardSet.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2011 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef CardSet_h
-#define CardSet_h
-
-#include <stdint.h>
-#include <wtf/Assertions.h>
-#include <wtf/Noncopyable.h>
-
-namespace JSC {
-
-template <size_t cardSize, size_t blockSize> class CardSet {
- WTF_MAKE_NONCOPYABLE(CardSet);
-
-public:
- static const size_t cardCount = (blockSize + cardSize - 1) / cardSize;
-
- CardSet()
- {
- memset(m_cards, 0, cardCount);
- }
-
- bool isCardMarkedForAtom(const void*);
- void markCardForAtom(const void*);
- uint8_t& cardForAtom(const void*);
- bool isCardMarked(size_t);
- bool testAndClear(size_t);
-
-private:
- uint8_t m_cards[cardCount];
- COMPILE_ASSERT(!(cardSize & (cardSize - 1)), cardSet_cardSize_is_power_of_two);
- COMPILE_ASSERT(!(cardCount & (cardCount - 1)), cardSet_cardCount_is_power_of_two);
-};
-
-template <size_t cardSize, size_t blockSize> uint8_t& CardSet<cardSize, blockSize>::cardForAtom(const void* ptr)
-{
- ASSERT(ptr > this && ptr < (reinterpret_cast<char*>(this) + cardCount * cardSize));
- uintptr_t card = (reinterpret_cast<uintptr_t>(ptr) / cardSize) % cardCount;
- return m_cards[card];
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::isCardMarkedForAtom(const void* ptr)
-{
- return cardForAtom(ptr);
-}
-
-template <size_t cardSize, size_t blockSize> void CardSet<cardSize, blockSize>::markCardForAtom(const void* ptr)
-{
- cardForAtom(ptr) = 1;
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::isCardMarked(size_t i)
-{
- ASSERT(i < cardCount);
- return m_cards[i];
-}
-
-template <size_t cardSize, size_t blockSize> bool CardSet<cardSize, blockSize>::testAndClear(size_t i)
-{
- ASSERT(i < cardCount);
- bool result = m_cards[i];
- m_cards[i] = 0;
- return result;
-}
-
-}
-
-#endif